John Gill Commentary Luke 21:1

"And he looked up, and saw the rich men that were casting their gifts into the treasury." — Luke 21:1 (ASV)

And he looked up As Christ sat over against the treasury, looking upon the ground, he lifted up his eyes; for the treasury was not in a high place, or above Christ, who was right against it. The Syriac, Arabic, and Persic versions leave out this clause.

And saw the rich men casting their gifts into the treasury; (See Gill on Mark 12:41).